True.
If time is a constraint and there is a need to quickly deliver research findings to stakeholders, an email message or a Word document can be a suitable format for the deliverable. These formats are easy to create and can be quickly shared with stakeholders, allowing them to quickly review the key findings and recommendations. However, it's important to note that email messages or Word documents may not be as comprehensive or visually appealing as other deliverable formats, such as a presentation or a report. Therefore, the quickest deliverable format for research findings when time is a constraint is an email message or a Word document.